FIR UNIT 7 Essey Assignment

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За. Bromine and methanoic acid react in aqueous solution. Br, (aq) + HCO0Н (ад) — 2Br (aq) + 2H" (аq) + Со, (g) The reaction was monitored by measuring the volume of carbon dioxide produced as time progressed. o 5 10 15 20 25 [Source: © International Baccalaureate Organization 2019] 30 20 40 60 80 100 120 140 160 Time / s [Source: © International Baccalaureate Organization 2019] Determine from the graph the rate of reaction at 20 s, in cm³ s1, showing your working. 3b. Outline, with a reason, another property that could be monitored to measure the rate of this reaction. 3c. Describe one systematic error associated with the use of the gas syringe, and how the error affects the calculated rate. 3d. Identify one error associated with the use of an accurate stopwatch. Volume of carbon dioxide / cm T m mm mo

Name (please print): Fall 2022 Basic Laboratory Operations Post Lab Questions 1.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it evaporates quickly). If you first measure the mass and then several minutes later you measure the volume of the liquid will the measured density be higher than the true value, lower than the true value, or the true density of the liquid. [It helps to understand this problem with the density equation.] 2.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it evaporates quickly). If you first measure the volume and then several minutes later you measure the mass of the liquid will the measured density be higher than the true value, lower than the true value, or the true density of the liquid. [It helps to understand this problem with the density equation.] 3.) You're attempting to calculate the density of an alloy. The alloy is in the shape of a cylinder. If the mass of the alloy is…

View History Bookmarks Tools Window Help Firefox File Edit Module 11 HW Chapter X w NWP Assessment PlayeX Module 10 HW Chapter my.CSMD edu Module 9 HW ChapterX WNWP Assessment Play X O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=9010073f-2141-4e90-8e6b-01c4c1518d8f#/question/5 + Module 11 HW Chapter 20 - Selected Exercises -/1 E Questio Question 6 of 8 Propose a plausible mechanism for the following transformation. Question Molecular Dra For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do not use abbreviations such as Me or Ph Question 2 Molecular Draw -OH Question 3 Molecular Draw Pyridine Question 4 Multipart Step 1 Question 5 Multiple Choice Draw Step 1 of the mechanism. Viewing Ques Multistep HO Question 7 Multistep / Edit Drawing Question 8 Molecular Drawing MacBook Air esc ** F2 F3 F4 23 $ & * 3 8 Q W E R T Y lab S G caps lock C V hift alt…

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Products purchased from grocery stores are dated and need to be used within a certain amount of time. This is to protect consumers from the effects of food spoilage. Which process helps to slow the spoilage of food products?

4PH3 P4 + 6H₂ What is the rate of disappearance of PH3 from 0 to 75 seconds? Time [PH₂] [P4] [H₂] 0 2.00 0 0 75 1.50 ? ? 150 1.25 0.19 1.13 225 1.13 0.22 1.31 300 1.07 0.23 1.40 RatepH3 [?] x 10 M/s Coefficient (green) Exponent (yellow) Enter

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Part A Consider the equation for the decomposition of SO2 Cl2, SO2Cl2 (g) → SO2 (g) + Cl2 (g) Use the graph and the best fitting line to predict the concentration of SO2 Cl2 at 1700 s. The graph of In SO2 Cl2] versus time is Express your answer to two significant figures and include the appropriate units. -2.3 Slope y-intercept HẢ ? -2.4 y = -0.000290t - 2.30 -2.5 Value Units -2.6- -2.7 Submit Request Answer -2.8+ 500 1000 1500 2000 Time (s) Provide Feedback In [SO,Cl2]

Firefox File Edit View History Bookmarks Tools Window Help my.CSMD.edu I Module 12 HW Chi wr NWP Assessme X De Module 9 HW Cha W NWP Assessment I Module 11 HW Che w NWP Assessment O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=b0085ec6-77d3-4053-89d4-c26a8188beb3- E Module 12 HW Chapter 21 - Selected Exercises Question 5 of 8 -/1 E Starting with diethyl malonate, and using any other reagents of your choice, show how you would prepare the following compound: Fill 1) ? 2) ? Que Multi EtO 3)? 4) ? 5) ? Choose from the following list of reagents: OEt HO. Ques Multipa Questi A B D Multistep CH3Br LIAIH4 LDA NaOEt / EtOH Viewing Multipart Question E G H. Molecular Dra NaOH EtBr MgBr, H,O H20, heat heat Question 7 Multipart Question 8 Multistep MacBook Air esc F2 F3 F4 FS F10 @ 23 $ % & 1 2 3 4 7 8 W E R Y tab A S D F caps lock C V shift alt coms control option command

18) 08 Veek 6 Homework # 6 Week 6 Homework Topic: Week 6 Recorded X Marc Foster's Personal M X + stuniversity.edu/courses/6957/assignments/165042 Maps EReading 5 of 16 MISSED THIS? Watch KCV 11.9; Read Section 11.9. You can click on the Review link to access the section in your e Text. The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure of 732 mm Hg . The vapor pressure of water at 30 °C is 31.8 mm Hg. deos Part A What is the partial pressure of the hydrogen gas collected in this way? Express your answer in millimeters of mercury to three significant figures. tions PH, mm Hg Next - Previous 2:14 PM 85°F Sunny 10/3/2021 ASUS VivoBook delete insert prt sc home F12 Pgdn f10 end 因 94 61 f5 backspace & 5 6 24 4. 9. 3.

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Answer question number 7 on the attached document

Use the information given here to answer both questions (4 and 5).  For the fictitious reaction:  AB → A + B Some data was collected measuring the [AB] at certain time intervals.  This data was then graphed as described below. A graph of 1/[AB] versus time (s) gives a straight line with the equation: y = 0.0052x + 0.1135 and a R2 = 0.9995.  A graph of ln[AB] versus time (s) gives a straight line with the equation: y = -0.0068x + 1.725 and a R2 = 0.8925.   Assume the data doesn't fit a zero order reaction. What is the rate law for this reaction? Select one: a. Rate = k[AB]2 b. Rate = k[A][B] c. Rate = k[AB] d. Rate = k   Using the data from the previous question. What is the value of the rate constant for the given reaction? Select one: a. k = 0.0052 M-1s-1 b. k = 0.0157 Ms-1 c. k = 0.0068 s-1 d. There is no way to determine the value of the rate constant from the given information.

7. You can see an MSDS below. Please answer the following questions related to the MSDS. a) What is the name of this chemical? b) What should you do if someone drinks the chemical? c) Would this chemical catch on fire if it was exposed to flames? d) If this chemical gets in your eye what should you do? e) What color is this chemical? f) What should you do if someone spills a small amount of the chemical?

so that means route a is preferrable in a small lab and route b is preferred in a chemical plant?

How can the reaction rate for a low pressure gaseous reactant be slow at high temperatures? Group of answer choices Particles may not have the correct orientation and/or low collision frequency. Particles may have low collision frequency and/or do not have enough surface area. Particles may not have the correct orientation and/or do not have enough energy. Particles may not have enough energy and/or low collision frequency. Particles may not have enough energy and/or do not have enough surface area. Particles may not have the correct orientation and/or do not have enough surface area.

Consider the equation for the decomposition of SO2C22, SO2Cl2 (g) → S02(g) + Cl2 (g) The graph of In SO2 Cl2] versus time is -2.3- Slope y-intercept -2.4 y -0.000290t 2.30 -2.5 -2.6- -2.7 -2.8+ 0. 500 1000 1500 2000 Time (s) You may want to reference (Page) Section 14.4 while completing this problem. In [SO,Cl]

Suppose you have an 8-hour ozone value of 0.088 ppm, and a PM2.5 value of 35.7 ug/m3. The AQI value is Blank 1 and the responsible pollutant is Blank 2. According to the AQI scale, this falls under the category Blank 3. Note: for the pollutant, choose between ozone and PM2.5 These Breakpoints.. .equal this AQI .and this category Air Quality Index Levels of Health Concern Numerical Value O3 PM25 PM10 CO SO2 NO2 AQI (ppm) 1-hour (H8/m) (H8/m²) (ppm) 8-hour (ppm) (ppb) (ppb) 8-hour 24-hour 24-hour 1-hour 1-hour Good 0 to 50 0.0 - 4.4 0- 53 0- 50 0.000 - 0.054 0.0- 12.0 0- 54 0- 35 Good Moderate 51 to 100 55 - 154 54 - 100 0.055 - 0.070 12.1 - 4.5 - 9.4 36 - 75 51 - 100 Moderate 35.4 Unhealthy for Sensitive Groups 101 to 150 0.125 - 155 - 254 9.5 - 12.4 76 - 185 101 - 360 101 - 150 Unhealthy for Sensitive Groups 0.071 - 35.5 - 0.085 0.164 55.4 0.086 - 0.165 - 255 - 354 361 -649 151 - 200 Unhealthy 151 to 200 (55.5 - 150.4) (186 - 304)* 12.5 - Unhealthy 0.105 0.204 15.4 Very Unhealthy 201…

12 13 14 -10 The radius of a copper (Cu)atom is roughly 1.3 x 10 m. How many times can you divide evenly a 446.7 cm long piece of copper wire until it is reduced to two separate copper atoms? (Assume there are appropriate tools for this procedure and that copper atoms are lined up in a straight line, in contact with each other. Round your final answer to the nearest integer.) times Ar Save For Later Submit Assignment Check 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility 8:5 77°F P Type here to search 99+) 9/6 HUAWEI दा PgUp PgDn F 10 Home End. F1 F2 F3 F4 F5 F6 F7 F8 F9 F11 @ # $ & LL

1955 Robert Wentorf. Graphite to diamond at 2000°C and 106 atm. Even though graphite is more stable than diamond at 25°C and atmospheric pressure, the conversion is very slow. A process called chemical vapor deposition uses Carbon sources like methane to release carbon atoms in presence of hydrogen gas and deposit it as diamond at low pressure and temperature (600°C) Reference: Chemistry: An atoms first approach, Zumdahl & Zumdahl, Cengage Learning, 2012. Question: Based on the above phase diagram: Comparing graphite and diamond, which one is denser? How many triple points? Explain

A researcher can determine that an exothermic reaction has occurred in a flask if O the flask feels warm. O lots of particle movement is visible. O minimal particle movement is visible. O the flask feels cool. ntviewer.emssvc.connexus.com/index.htmi= https://prodpcx-cdn-learn Untitled document.pd Type here to search insert 2 %23 3 $ 4 7 Q tab R T caps lock A D G H. C fn lock B の Σ つ LL S